US2502313A - Vibration absorbing support - Google Patents

Description

March 28, 1950 H. M. DoDGE 2,502,313

VIBRATION ABSORBING SUPPORT Filed March 25, 1945 ATTURN S maar.aan,una l' 4"*2,502,313

UNITED STATES PATENT OFFICE VIBRATION ABSORBING SUPPORT Howard M. Dodge. Wabash, Ind., assignor to The General Tire & Rubber Company, Akron, Ohio, a corporation of Ohio Application March 23, 1945, Serial No. 584,409

l 6 Claims. (Cl. 248-358) 'This invention relates to a vibration absorbing provided with suitable bolt holes 2 for attachsupport for impeding transmission of vibration ment to the supporting and supported members. from a machine or instrument to its support, or Each of the attaching plates I has a central from the support to the instrument or machine, circular opening and is provided with tongues the cushioning portion of the support being comor anges 3 that are struck up from the body posed of rubber and so formed that it is yieldthereof at the margin of the central opening. able axially and also in directions transverse to The tongues or anges 3 are bent alternately its axis. upwardly and downwardly with respect to the The invention has for an object to provide a plate. "I'he attaching plates I are secured to support in which the rubber cushioning body is the opposite ends of a molded tubular cushionso shaped that it has a high degree of resiliency ing body 4 of rubber which has circular edge both axially and transversely of its axis, so as to portions 5 at lts ends in which the anges 3 of eiectively cushion vibratory impulses in any the supported plate are embedded, the iianges 3 direction, and which is adapted to provide a viforming a reinforcing ring in the tubular wall of bration absorbing support for either a superposed i5 the rubber cushioning body. orasuspended load. The tubular rubber body 4 has a thick wall A further object of the invention is to provide center portion 6 of less diameter than the end a support in which the rubber cushioning body portions 5 and has Walls I which have interior and is eiectively reinforced by the attaching plates exterior faces of conical form and which gradusecured to its ends. i ally decreases in thickness vfrom the center por- A further object it to provide a support suittion 6 tothe edge portions 5. able for use in supporting machines or instrusuperimposed loads put the central portion of ments which vary considerably in weight and the rubber body under compression and, by reason which is an effective shock absorber throughout of the fact that the central portion of the rubber arelatively large range of loads. body is of considerably smaller diameter than With the above and other objects in view, the the end portions, the plates I and parts attached invention may be said to comprise the support thereto may have relative lateral or tilting moveas illustrated in the accompanying drawings, ments with respect to one another, all of which hereinafter described and particularly set forth movements are resiliently cushioned by the rubin the appended claims, together with such variaber body 4. If the load is suspended the conical tions and modifications thereof as will be apparend walls are under tension and relative lateral ent to one skilled in the art to which the invenand tilting movements as well as relative axial tion pertains. movements are cushioned.

Reference should be had to the accompanying In Fig. 3 of the drawings a slightly modied drawings forming a part of this specication, in construction is shown, in which the rubber body which 4a has a solid central portion 6a of reduced diam- Fig. 1 is a top plan view of the support embodyeter and tapering conical Wall portions 1a which ing the invention;- correspond substantially to the tapering walls 1 Fig. 2 is a section taken on the line indicated in the modication first described. The cushionat 2-2 of Fig. 1; 40 ing action of the rubber member 4a is similar to Fig- 3 iS a Section Similar t0 Fig- 2, ShOWing a that of the cushioning member 4 above described, Slightly modified COIlStluCiiOn; the solid center making the support somewhat Fg- 4 iS 2 00p Plan View 0f aIlOiSller Support stiiler and increasing its load supporting capacity. embodying the invention; l In Figs. 4 to 7 of the drawings a further modi- Fig. 5 is a section taken on the line indicated "f5 iication of the invention is illustrated, in which at 5-5 in Fig. 4; the support is provided with attaching plates II Fig. 6 is a fragmentary plan view of the supprovided with bolt holes I2, the plates II being porting plate employed in the support shown in provided with a circular central opening and a Figs.4and 5, and r continuous flange I3 around the margin of the Fig. 7 is a section taken on the line indicated 00 opening. The flange I3 is of substantially cylinat 11 in Fig. 5. drical form and has an inturned edge I4. Spaced Referring to the accompanying drawings, the openings I5 are provided in the ange I3 and the support of the present invention is provided with ange I3 is embedded in a rubber cushioning body attaching plates I at its opposite ends which may I6. The cushioning body I6 is of conical form be identical in construction and which may be interiorly and exteriorly and is provided with an upturned edge portion I l at its large end in which the flange Il of the attaching plate Il is embedded. The small end of the cushioning member Ii is provided with a substantially cylindrical edge portion Il in which is embedded a marginal flange I9 of an attaching disk Il.

The support is composed'of two frusto conical units, each composed of the attaching plate Il, the connecting disk 20 and the conical rubber body I6. The marginal ange I9 of each con- 4 support, said plates having openings of greater diameter than said central portion and flanges at the margins of the openings embedded in the end edgesy of said support.

4. A vibration absorbing support comprising a body yof rubber having a relatively stili central portion and annular resilient end portions of substantially conical form and converging to` said central portion, and attaching plates secured to necting disk is provided with openings 2l for anchoring the flanges I9 in the rubber body l0 and connecting disks 20 are joined together centrally by means of a rivet 22.

In each of the modifications formed the rubber body may be molded and vulcanized upon ff the anged edges of the metal plates to embed y the flanges in the rubber.

It is to be understood that variations and modifications of the specific device herein shown and described for purposes of illustration. may be made without departing from thespirit of the Y invention.

What I claim is:

1'. A vibration absorbing support having a cushioning body provided with a relatively stif! central portion and hollow flaring resilient rubber end portions of substantially conical form that converge to said central portion, and an attaching plate at each end of said support, said plates -around the peripheries of said annular ends.

3. A vibration absorbing support having a relatively stii central portion and hollow flaring 4 resilient rubber end portions of substantially conical form that converge to said central portion, and an attaching plate at each end of said the annular end edges of said support, each plate being perpendicular to the axis of the support and having an edge portion forming a flange projecting outwardly from the annular end to which 7the plate is attached.

5. A vibration absorbing support comprising a tubular body of resilient rubber having a portion of reduced external diameter and increased wall thickness midway between its ends, the ends of said tubular body iiaring from the portion of reduced diameter, and an annular attaching plate secured to said tubular body adjacent each end thereof, each attaching plate being of an external diameter greater than the end' of the tubular body to which it is attached and projecting outwardly therefrom.

lf 6. A vibration absorbing support comprising f two vannular aring tubular resilient rubber units disposed small end to small end, an annular attaching plate at the large end of each of said units andl having a marginal portion attached to the large end of said unit, and two connecting disks secured together and each having a peripheral portion secured to the small ends of one of said units.

HOWARD M. DODGE.

REFERENCES CITED The following references are of record in the ille of this patent:

UNITED STATES PATENTS Number Name Date 1,477,331 Ely Dec. 11, 1923 1,892,065 Markey Dec. 27, 1932 1,948,476 Saurer Feb. 20, 1934 2,018,860 Lord Oct. 29, 1935 2,132,840 Workman et al. Oct. 11, 1938

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